Fortnite

Fortnite on the AMD Ryzen 5 3600 and NVIDIA GeForce RTX 4090 pairing presents a study in asymmetric scaling. The data shows a CPU that, while aging, still holds a 76th percentile ranking among all processors, paired with a GPU that sits in the 91st percentile. This combination yields playable frame rates across all tested resolutions, but the distribution of those results reveals where the bottleneck shifts between the two components.

FAQ

Q: What is the best resolution for high-refresh-rate competitive play?

A: The 1920x1080 Low preset achieves an average of 307 FPS, which is the highest measured result in the entire dataset. Even the 2560x1440 Low preset delivers 263.8 FPS, making both viable for high-refresh monitors.

Q: How does the CPU compare to its closest rivals?

A: The Ryzen 5 3600 has an average benchmark score of 18129, putting it statistically tied with the Intel Core i5-11400, which scores 18150 with a delta of -0.1%. It is also within 0.2% of the AMD Ryzen 5 7535HS and 0.3% of the AMD EPYC 9274F.

Q: Is the RTX 4090 bottlenecked by the Ryzen 5 3600?

A: Yes, particularly at lower resolutions. The jump from 1080p to 1440p at Low settings costs 43.2 FPS, while the jump from 1440p to 4K costs 105.7 FPS. The relatively smaller drop from 1080p to 1440p suggests the CPU is limiting performance before the GPU becomes fully saturated.

Q: What is the average FPS at 4K Ultra settings?

A: The 3840x2160 Ultra preset yields an average of 59.7 FPS. This is the lowest result in the entire measured set, indicating a GPU-bound scenario at the highest fidelity.

Q: How large is the gap between Low and Ultra settings at each resolution?

A: At 1080p, the gap is 132.9 FPS (307 vs 174.1). At 1440p, the gap is 157 FPS (263.8 vs 106.8). At 4K, the gap is 98.4 FPS (158.1 vs 59.7).

Q: What is the GPU's standing relative to other graphics cards?

A: The RTX 4090 holds a 91st percentile ranking among all GPUs. Its nearest rival, the NVIDIA Tesla T4, scores 66733 against the 4090's 66473 average, a delta of -0.4%, which is within the margin of error.

GPU Role

The NVIDIA GeForce RTX 4090 brings substantial resources to this pairing. It features 24 GB of GDDR6X memory on a 384-bit bus, delivering a bandwidth of 1.01 TB/s. The chip operates at a base clock of 2235 MHz and a boost clock of 2520 MHz, with memory running at 1313 MHz (21 Gbps effective). These specifications place the GPU in the 91st percentile of all GPUs, with an average benchmark score of 66473.

The data indicates that the RTX 4090's role changes depending on the preset. At Ultra settings, the GPU is clearly the primary driver of performance. The 4K Ultra result of 59.7 FPS shows the GPU working at its maximum capacity, but the 1080p Ultra result of 174.1 FPS is only 15.9 FPS higher than the 4K High result of 87.3 FPS. This suggests that at lower resolutions, the CPU's single-thread capabilities begin to cap the GPU's output.

The VRAM capacity is never a limiting factor in this dataset. Even at 4K Ultra, the GPU is not running out of memory; it is simply running out of processing headroom. The bandwidth provided by the 1.01 TB/s memory interface ensures that texture streaming and geometry data can be fed to the shader units without stalling, which is why the GPU can push 158.1 FPS at 4K Low.

Settings Recommendations

The measured data offers a clear hierarchy for players prioritizing frame rate. For competitive play at 1080p, the Low preset at 307 FPS is the obvious choice, as it provides the maximum refresh rate headroom. The Medium preset at 267.4 FPS also remains above the 240 Hz threshold, offering better visual fidelity with only a 39.6 FPS penalty.

At 1440p, the Low preset is still king for esports, delivering 263.8 FPS. The High preset at 168.8 FPS is a balanced option for players with 165 Hz monitors, as it stays above that refresh rate with a 95 FPS margin. The Ultra preset at 106.8 FPS is playable but does not take full advantage of high-refresh displays.

For 4K, the recommendation depends on the display. The Low preset at 158.1 FPS is surprisingly strong, but the High preset at 87.3 FPS offers a much better visual experience while remaining above 60 FPS. The Ultra preset at 59.7 FPS is only suitable for players who prioritize image quality over smoothness, as it barely crosses the 60 FPS line.

The best overall experience for a 1440p monitor is the High preset, which balances the 168.8 FPS average with a visual quality that leverages the GPU's capabilities. The data shows that the Medium preset provides a 211.9 FPS average, but the jump to High only costs 43.1 FPS while likely providing a significant visual upgrade.

Measured FPS Breakdown

At 1920x1080, the RTX 4090 produces its highest frame rates. The Low preset averages 307 FPS, the Medium preset averages 267.4 FPS, and the High preset averages 246 FPS. The Ultra preset drops to 174.1 FPS, creating a 132.9 FPS spread between the lowest and highest quality settings.

The 2560x1440 results show a more pronounced scaling curve. Low averages 263.8 FPS, Medium averages 211.9 FPS, and High averages 168.8 FPS. The Ultra preset falls to 106.8 FPS, which represents a 157 FPS drop from Low. This is the largest absolute spread between settings across all resolutions.

At 3840x2160, the frame rates compress significantly. Low averages 158.1 FPS, Medium averages 114.3 FPS, and High averages 87.3 FPS. The Ultra preset averages 59.7 FPS, which is the only result in the entire dataset that falls below the 60 FPS threshold. The spread between Low and Ultra at 4K is 98.4 FPS, which is smaller than at lower resolutions, indicating a GPU-bound scenario where the absolute performance ceiling is reached.

The data shows a consistent pattern: the Ryzen 5 3600 is capable of feeding the RTX 4090 at lower settings, but the Ultra presets at all resolutions invoke a heavier CPU load for physics and game logic, which caps the GPU's potential. The 1080p Ultra result of 174.1 FPS is particularly telling, as it is only 15.9 FPS higher than the 1440p High result of 168.8 FPS.

Resolution Scaling

The scaling from 1080p to 1440p at Low settings shows a drop from 307 FPS to 263.8 FPS, a reduction of 43.2 FPS (14.1%). At Medium settings, the drop is 55.5 FPS (267.4 to 211.9). At High settings, the drop is 77.2 FPS (246 to 168.8). At Ultra settings, the drop is 67.3 FPS (174.1 to 106.8).

The scaling from 1440p to 4K is more severe. At Low settings, the drop is 105.7 FPS (263.8 to 158.1). At Medium settings, the drop is 97.6 FPS (211.9 to 114.3). At High settings, the drop is 81.5 FPS (168.8 to 87.3). At Ultra settings, the drop is 47.1 FPS (106.8 to 59.7).

The pattern reveals the limiting component. At Low settings, the 1080p to 1440p drop is relatively small (43.2 FPS), suggesting the CPU is the bottleneck at 1080p. The GPU has enough headroom to handle the extra pixel count without a proportional drop. However, the 1440p to 4K drop at Low settings is much larger (105.7 FPS), indicating the GPU is now becoming the limiting factor.

At Ultra settings, the scaling is different. The 1080p to 1440p drop is 67.3 FPS, and the 1440p to 4K drop is 47.1 FPS. This suggests that at Ultra settings, the CPU is already heavily loaded at 1080p, and the GPU is working closer to its capacity. The smaller absolute drop from 1440p to 4K indicates that the GPU is the primary bottleneck at the highest quality settings, as the extra resolution has diminishing returns when the GPU is already near its limit.

The benchmark results indicate that the Ryzen 5 3600, with its 6 cores and 12 threads, can sustain high frame rates but not the extreme rates that the RTX 4090 can produce at lower resolutions. The 1080p Low result of 307 FPS is likely near the CPU's ceiling in this game, while the 4K Low result of 158.1 FPS shows the GPU taking over the workload. Players with high-refresh 1080p monitors will find the CPU limiting, while 4K players will see the GPU as the dominant factor.